In a reflector antenna[?], the relative reduction in the effective aperture of the antenna caused by the masking effect of other antenna parts, such as a feed horn or a secondary reflector, which parts obstruct the radiation path.
... land and 2.2 km² (0.8 mi²) of it is water. The total area is 1.92% water.
Demographics
As of the census2 of 2000, there are 53,364 people, 21,348 households, ...